Question

0.4(x+3)-0.2(x-1)=3x+3

Answer 1

0.4 ( x + 3 ) - 0.2( x - 1 ) = 3x + 3


$\frac{4(x + 3)}{10} - \frac{2(x - 1)}{10} = 3x + 3 \\ \\ = > \frac{4x + 12 - 2x + 2}{10} = 3x + 3 \\ \\ = > 2x + 14 = 30x + 30 \\ \\ => 14 - 30 = 30x - 2x \\ \\ => - 16 = 28x \\ \\ = > - \frac{16}{28} = x \\ \\ => \frac{ - 9}{14} = x$